fix: bg verses now show range of verses

app/lib/books/bg/intro.json

@@ -6,74 +6,92 @@
   "chapters": [
     {
       "number": 1,
+      "title": "Observing the Armies on the Battlefield of Kurukṣetra",
       "totalVerses": 39
     },
     {
       "number": 2,
+      "title": "Contents of the Gītā Summarized",
       "totalVerses": 71
     },
     {
       "number": 3,
+      "title": "Karma-yoga",
       "totalVerses": 43
     },
     {
       "number": 4,
+      "title": "Transcendental Knowledge",
       "totalVerses": 42
     },
     {
       "number": 5,
+      "title": "Karma-yoga-Action in Kṛṣṇa Consciousness",
       "totalVerses": 27
     },
     {
       "number": 6,
+      "title": "Sāṅkhya-yoga",
       "totalVerses": 42
     },
     {
       "number": 7,
+      "title": "Knowledge of the Absolute",
       "totalVerses": 30
     },
     {
       "number": 8,
+      "title": "Attaining the Supreme",
       "totalVerses": 28
     },
     {
       "number": 9,
+      "title": "The Most Confidential Knowledge",
       "totalVerses": 34
     },
     {
       "number": 10,
+      "title": "The Opulence of the Absolute",
       "totalVerses": 40
     },
     {
       "number": 11,
+      "title": "The Universal Form",
       "totalVerses": 52
     },
     {
       "number": 12,
+      "title": "Devotional Service",
       "totalVerses": 16
     },
     {
       "number": 13,
+      "title": "Nature, the Enjoyer, and Consciousness",
       "totalVerses": 29
     },
     {
       "number": 14,
+      "title": "The Three Modes of Material Nature",
       "totalVerses": 24
     },
     {
       "number": 15,
+      "title": "The Yoga of the Supreme Person",
       "totalVerses": 19
     },
     {
       "number": 16,
+      "title": "The Divine and Demoniac Natures",
       "totalVerses": 19
     },
     {
       "number": 17,
+      "title": "The Divisions of Faith",
       "totalVerses": 24
     },
     {
       "number": 18,
+      "title": "Conclusion-The Perfection of Renunciation",
       "totalVerses": 74
     }
   ]